.gitlab-ci.yml

-stages:
- - build
- - push
-
-docker_build:
-  stage: build
-  script: BUILD_EXTRA="--no-cache --pull" ./build.sh $CI_REGISTRY_IMAGE
-
-docker_push:
-  stage: push
-  before_script:
-  - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
-  script:
-  - docker push "${CI_REGISTRY_IMAGE}:oldstable"
-  - docker push "${CI_REGISTRY_IMAGE}:stable"
-  - docker push "${CI_REGISTRY_IMAGE}:rc"
-  - docker push "${CI_REGISTRY_IMAGE}:dev"
-  - docker push "${CI_REGISTRY_IMAGE}:latest"
+update:
+  variables:
+    BUILD_EXTRA: "--no-cache --pull"
+    BUILD_NAME: "$CI_REGISTRY_IMAGE"
+    BUILD_PUSH: "1"
+  before_script: docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
+  script: ./build.sh
   only:
     refs:
     - master

Dockerfile

-FROM php:7-apache
+FROM php:8.1-apache
 
 MAINTAINER Sébastien Luttringer <seblu@seblu.net>
 

build.sh

@@ -2,39 +2,40 @@
 
 set -e
 
-declare -r name=${1:-docker.seblu.net/docker/dokuwiki}
+# Build dokuwiki images.
+# Set environ BUILD_PUSH to push build images.
+# Set environ BUILD_EXTRA to add arguents to docker build command line.
+
+# Define build image name. Define env BUILD_NAME to override.
+declare BUILD_NAME=${BUILD_NAME:-docker.seblu.net/docker/dokuwiki}
+
 # Dokuwiki upstream consider the last reliable version to be rc when available.
 # The update_check in dokuwiki is always looking for RC too.
 # https://forum.dokuwiki.org/d/8939-update-check-should-not-be-used-for-release-candidates
 # so we tag latest rc when available, either stable or oldstable.
 declare latest=''
 
-# declare well known versions. order matter!
-declare -a versions=(dev oldstable stable rc)
-declare -A url=(
+# Declare well known versions. Order matter! Latest is the latest tag.
+declare -r -A versions=(
   ["dev"]="http://github.com/splitbrain/dokuwiki/tarball/master"
   ["oldstable"]="https://download.dokuwiki.org/src/dokuwiki/dokuwiki-oldstable.tgz"
   ["stable"]="https://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz"
   ["rc"]="https://download.dokuwiki.org/src/dokuwiki/dokuwiki-rc.tgz"
 )
 
-for version in "${versions[@]}"; do
-  # do not build unavailable url (e.g: rc is only avaible before a new release)
-  echo "Checking $version url ${url[$version]}"
-  curl -Isf "${url[$version]}" -o /dev/null || continue
+for version in "${!versions[@]}"; do
+  # Do not build unavailable url (e.g: rc is only avaible before a new release)
+  echo "Checking $version at ${versions[$version]}"
+  curl -Isf "${versions[$version]}" -o /dev/null || continue
   echo "Building $version"
-  docker build --build-arg=DOKUWIKI_URL="${url[$version]}" --tag "$name:$version" $BUILD_EXTRA .
+  docker build --build-arg=DOKUWIKI_URL="${versions[$version]}" --tag "$BUILD_NAME:$version" $BUILD_EXTRA .
+  [[ "$BUILD_PUSH" ]] && docker push "$BUILD_NAME:$version"
   latest=$version
 done
 
-echo "Tag latest: $latest"
-docker tag $name:$latest $name:latest
-
-echo =========================================================================
-echo ::: IMAGE NOT PUSHED
-echo ::: to push image:
-for version in "${versions[@]}"; do
-  echo       docker push "$name:$version"
-done
-echo       docker push "${name%:*}:latest"
-echo =========================================================================
+# The latest tag is special
+if [[ "$latest" ]]; then
+  echo "Tag latest is $latest"
+  docker tag "$BUILD_NAME:$latest" "$BUILD_NAME:latest"
+  [[ "$BUILD_PUSH" ]] && docker push "$BUILD_NAME:latest"
+fi